#EFF28F#EFF28F

#EFF28F is a very light, vivid yellow. Relative luminance 0.838; OKLCH L 93.8% C 0.122 H 110.0°. Best body text is #000000 at 17.77:1 contrast (WCAG AA passes).

Color values

HEX	#EFF28F
RGB	rgb(239, 242, 143)
HSL	hsl(62, 79%, 75%)
HSV	hsv(62, 41%, 95%)
CMYK	cmyk(1.2%, 0%, 40.9%, 5.1%)
CIE-LAB	lab(93.38, -15.03, 47.34)
CIE-LCH	lch(93.38, 49.67, 107.61°)
OKLab	oklab(93.77% -0.0418 0.1146)
OKLCH	oklch(93.77% 0.122 110)
XYZ	xyz(72.3077, 83.8395, 38.3549)
Luminance	0.8384 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF28F #928FF2

analogous

#F2C38F #EFF28F #BDF28F

triadic

#EFF28F #8FEFF2 #F28FEF

tetradic

#EFF28F #8FF2C3 #928FF2 #F28FBD

square

#EFF28F #8FF2C3 #928FF2 #F28FBD

split-complementary

#EFF28F #8FBDF2 #C38FF2

monochromatic

#DFE521 #E7EC58 #EFF28F #F7F8C6 #FBFCE4

Accessibility & contrast

On white

1.18

#EFF28F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.77

#EFF28F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF28F

17.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF28F	#FFFFFF	#000000	##000000
##EFF28F	1.00	1.18	17.77	17.77
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.77	21.00	1.00	1.00
##000000	17.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA87

Deuteranopia (green-blind)

#FFEE94

Tritanopia (blue-blind)

#FBE7DA

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff28f;
/* rgb */ color: rgb(239, 242, 143);
/* oklch */ color: oklch(93.8% 0.122 110.0);

Tailwind

colors: {
  custom: {
    50: '#f6f6b1',
    500: '#eff28f',
    950: '#000000',
  },
}

SCSS

$custom: #eff28f;
$custom-light: #f6f6b1;
$custom-dark: #000000;

JSON

{
  "hex": "#eff28f",
  "rgb": {
    "r": 239,
    "g": 242,
    "b": 143
  },
  "hsl": {
    "h": 61.818,
    "s": 79.2,
    "l": 75.49
  },
  "oklch": {
    "l": 0.93768,
    "c": 0.12202,
    "h": 110
  },
  "luminance": 0.83838
}

Semantic roles & 50–950 ramp

primary

#EFF28F

secondary

#5A57CF

accent

#0ADB10

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF28F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →